//
// Created by liushuai on 2020/4/8.
//
#pragma once
#include <string>
#include <vector>
using namespace std;
vector<string> permutation(string s);
std::vector<std::vector<int>> permute(std::vector<int> &nums);
std::vector<std::vector<int>> permuteDFS(std::vector<int> &nums);
